text: On the morning of May 20, at Tan Son Nhat Airport in HCMC, Korean Air planes had to divert to another runway because of bird entanglements?
classes:  No, on the morning of May 20, Korean Air aircraft were cancelled due to the bird incident on the runway of Tan Son Nhat airport.  Also, on the morning of May 20, Korean Air aircraft were cancelled due to the bird incident on the runway of Tan Son Nhat airport.  Yes, on the morning of May 20, Korean Air aircraft were cancelled due to the bird incident on the runway of Tan Son Nhat airport.